> So you route the SGE startup mechanism to use `ssh`, nevertherless is should work of course. Small difference to a conventional `ssh` is, that SGE will start a private daemon for each job on the nodes listening on a random port.
>
> When you use only one host, then forks will be created but no `ssh` call. Your test uses more than one node?
>
> I have tested with more than one node but the error still happened.
>
> You copied you SGE aware version to all nodes at the same location? Are you getting the correct `mpiexec` and shared libraries in your jobscript? Shows the output of:
>
> I installed it from the ubuntu apt-get on each node, so the OpenMPI is in standard location. In fact ubuntu handles all dependencies very well without worrying about PATH or LD_LIBRARY_PATH.